Home / 76,337.64-105,346.98-57,183.48

Finding the Fourth Proportional to 76,337.64, 105,346.98 and 57,183.48

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Solution

The fourth proportional to 76,337.64, 105,346.98 and 57,183.48 is: 78,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,337.64 : 105,346.98 = 57,183.48 : x
  2. Step 2: Convert to fraction form
    76,337.64/105,346.98 = 57,183.48/x
  3. Step 3: Cross multiply
    76,337.64x = 105,346.98 × 57,183.48
  4. Step 4: Simplify right side
    76,337.64x = 6,024,106,923.89
  5. Step 5: Solve for x
    x = 6,024,106,923.89/76,337.64
  6. Step 6: Final answer
    x = 78,913.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.